The average price at the pump in Massachusetts is the same this week as it was last, according to the most recent survey by AAA.

Gas is running about $3.77 according to the auto club, that’s 21 cents higher than a month ago and 40 cents lower than a year ago, according to data.

The price of gas is 9 cents cheaper in Massachusetts than the national average, $3.86.

“Gas prices are flat as the summer driving season comes to a close,” said Mark Schieldrop, AAA Northeast Public Affairs Specialist. “Late summer gasoline demand has softened as Americans shift from vacation planning to back-to-school preparations. But the calm in gas markets could end abruptly in the coming weeks depending on hurricane activity over the Atlantic Ocean. One large storm can cause significant disruption to coastal oil and gas infrastructure.”

Federal regulators have opened an investigation into Ford Motor Co.’s recall of nearly 49,000 Ford Mustang Mach-E vehicles last year.

The National Highway Traffic Safety Administration said Monday it is looking into Ford’s handling of the recall after receiving 12 complaints from car owners who said their vehicle was recalled and fixed but they still experienced problems with its battery.

Ford issued the recall in June 2022 for Mach-Es produced between May 27, 2020, and May 24, 2022. The automaker found high voltage battery main contactors could overheat from charging and other use, leading to overheating and damage and increasing the chance of power-loss or crashing.

Now, NHTSA estimates nearly 65,000 vehicles could be affected.

Ford did not immediately return a request for comment.